This issue was reviewed as DE42526 and determined this change in behavior is working as designed. This enables users to be able to explicitly set the status and any status change should not effect any other status on the WBS.
To update the Phase/Activity level tasks in OWB, manually update the task status or use % Complete Calculation Method of Duration that will automatically update the Phase/Activity statuses in OWB (depending on business use case).
- Important: It's recommended to not change the % Complete Calculation Method for a project. It should be set at the beginning of the project and not changed.
For more details on the behavior with tasks based on the % Complete Calculation Method, see the following tech tip:
CA PPM Tuesday Tip: How do the three % Complete Calculation Methods Work